US6346035B1 - Generation of an airstream with subliminable solid particles - Google Patents
Generation of an airstream with subliminable solid particles Download PDFInfo
- Publication number
- US6346035B1 US6346035B1 US09/333,087 US33308798A US6346035B1 US 6346035 B1 US6346035 B1 US 6346035B1 US 33308798 A US33308798 A US 33308798A US 6346035 B1 US6346035 B1 US 6346035B1
- Authority
- US
- United States
- Prior art keywords
- rotor
- air
- particles
- port
- auger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002245 particle Substances 0.000 title claims abstract description 59
- 239000007787 solid Substances 0.000 title claims abstract description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 238000005422 blasting Methods 0.000 claims 1
- 235000011089 carbon dioxide Nutrition 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000003339 best practice Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
- B24C7/0053—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier
Definitions
- Apparatus and method for preparing and discharging an airstream laden with subliminable solid particles for example, dry ice.
- subliminable as used herein includes “evaporable”.
- the art includes many examples of apparatus which reduce blocks of solid carbon dioxide to particles of useful size to meter previously made particles of dry ice and then entrain them in an airstream which exits through a nozzle to impact a surface.
- the seeming simplicity of entraining particles of dry ice in an airstream is confounded by the physical properties of the product itself.
- the dry ice is very cold, and as such chills everything it touches and closely approaches.
- the particles will readily aggregate into large lumps, with a different impact effect than the individual particles would have. Even worse, their aggregates tend to clog conventional metering and feeding mechanisms by freezing up in their chilled structures.
- proportionalizing air lock equipment For this purpose some type of proportionalizing air lock equipment is needed.
- Known devices try to perform both functions and include moving elements which have cavities to receive the particles, and which function to supply them at an agreed rate.
- moving elements which have cavities to receive the particles, and which function to supply them at an agreed rate.
- push-pull plates and rotary star wheels are known whose cavities arrive at a supply station with a known frequency and discharge their contents at that frequency.
- the customary approach to this requirement is to adjust the rate of supply of particles by fully filling the cavities in a feed mechanism, and then varying the rate of supply by adjusting the frequency at which the cavities arrive at their junction with the airstream. This is a satisfactory arrangement, but only within surprisingly narrow limits. As the demand for particles decreases, for example when a lesser flow is defined by the outlet nozzle, the filled cavities will discharge with a lesser frequency. This leads to a pulsating flow of particles at the nozzle which often does not produce a suitably uniform stream of particles.
- a system includes a source of dry ice particles, an adjustably variable-rate metering element, an air lock element, an adjustably regulable air supply, an air lock element receiving and combining both particles and air, a hose receiving a combined stream of air and particles from the air lock, and a nozzle discharging the particle-combining stream from the hose.
- the metering element is a rotary auger
- the air lock element includes a rotor pierced by a plurality of separate passages disposed as a ring around the center of rotation of the rotor.
- the metering element and air lock element are separately controlled, such that the air lock element is in operation at all times when the metering element is operating and continues to operate after the metering element stops, whereby to clear the air lock element of any residual particles to prevent clogging.
- the rate of rotation of the air lock element is independent of the feed rate from the metering element.
- FIG. 1 is a side view partly in cross-section, showing the preferred embodiment of the invention
- FIG. 2 is an enlarged view of a portion of FIG. 1;
- FIG. 3 is a plan view of a rotor used in this invention.
- FIG. 4 is a cross-section taken at line 4 — 4 in FIG. 3;
- FIGS. 5 and 6 are overlay views showing the relationship of ports on both sides of the rotor
- FIG. 7 is a schematic showing of a time relationship in the method of this invention.
- FIG. 8 is an enlarged view of a portion of FIG. 1;
- FIG. 9 is a schematic circuit drawing showing a control for the motor.
- a source 10 of solid carbon dioxide particles is schematically shown on a wheeled support 11 .
- This may be any desired type of device whose details form no part of this invention and therefore are not described in detail. Full details of preferred apparatus for use herein will be found in Opel et al U.S. Pat. No. 5,520,572, which is incorporated herein in its entirety for its showing of such apparatus.
- Particles are provided to a screw auger 15 , frequently referred to herein as a “metering element”.
- This auger is conventional, with a helical rib 16 that is rotated around a central axis. It is rotated by an adjustable speed motor 17 . A given angular rotation of the auger will move a known amount of particles to a delivery chute 18 .
- An auger control 19 schematically shown, can variably adjust the rate of rotation of the augur and thereby the feed rate of particles, and can also shut off the motor 17 .
- An air lock element 25 (FIGS. 1 and 2) is provided in which air and particles are combined to form the desired output stream. It also acts to seal pressurized air from the atmosphere, and permits the particles to be received at atmospheric pressure.
- a rotor control 26 is a disc-shaped plate 27 with a central axis of rotation 28 .
- the rotor is fixed to a rotary drive shaft 29 .
- the shaft is driven by an adjustable speed motor 30 .
- a rotor control 31 (FIG. 9) variably adjusts the speed of the motor, and can also shut it off.
- a series of ports 32 is formed in a ring pattern around the central axis, each one extending from upper surface 33 to lower surface 34 .
- An upper pad 35 and a lower pad 36 have respective flat surfaces 37 and 38 which bear against surfaces 33 and 34 in a sliding sealing contact.
- Upper pad 35 has an air passage 39 and a particle passage 40 through it. These are arcuately spaced apart.
- the particle passage can conveniently be made somewhat funnel-shaped to facilitate the flow of particles into ports 32 .
- Lower pad 36 has an exit passage 41 through it, preferably somewhat enlarged at its end adjacent to the rotor.
- the pads fit in non-circular recesses 47 , 48 in the pad holders.
- the pad holders do not rotate, and they hold the pads against rotation.
- Upper pad holder 45 has a step 50 giving access from the chute to port 40 , and an air passage 51 .
- the lower pad holder has an exit port 52 through it which is aligned with exit passage 36 .
- Particles are discharged from the chute into passage 40 , which is open to atmosphere. Ports 32 are closed to atmosphere by the air lock except when they register with passage 40 .
- a high pressure air line 55 is connected to an air passage 51 in the upper pad holder.
- An adjustably variable control 56 adjusts the pressure and rate of flow of air delivered to air passage 51 , as a function of system demand.
- An outlet hose 60 is connected to the lower pad holder at exit port 52 which leads to a nozzle 63 .
- the pads are preferably made of a hard organic plastic material such as ultra high molecular weight (UHMW) polyurethane. It has good wear qualities against metal and withstands the very cold temperatures that are involved.
- UHMW ultra high molecular weight
- the pad holders will usually be made of a suitable steel.
- Link 65 includes a lower retainer 66 which fits in a hole 67 in the lower pad holder, with a washer 68 that bears against the bottom of the lower pad holder.
- a chain link 69 joins retainer 66 to an upper retainer 70 which freely passes through a hole 71 in the upper pad holder.
- a pair of piston-cylinder assemblies 75 , 76 each having outer cylinder 77 and a piston/shaft 78 have their cylinders fixed to the upper pad holder, and their shaft fixed to the respective upper retainer 70 . Pulling on the shaft will place the stack between the cylinder and the end of its shaft in compression with a force against the stack which is proportional to the pressure exerted in the cylinder.
- An air line 80 with an adjustable pressure regulator 56 establishes this force.
- a spring (not shown) inside the cylinder bearing against the piston exerts a small prevailing compression force when no air pressure is applied.
- Control 31 for motors 17 and 30 is schematically shown in FIG. 9 .
- a switch 81 for the metering element drive (the “auger control”)
- a switch 82 (the “rotor control”) for the rotor shaft drive.
- These are ganged so as to be closed by a single push, such as by a pilot actuated by a separate switch (not shown) at the nozzle. Closure of both switches, which is simultaneous, will start both motors and therefore the feeding of particles to the air lock and the rotation of the rotor to pass a stream of pressurized air with particles.
- Switch 81 opens immediately.
- Switch 82 remains closed, for the predetermined period of time shown in FIG. 7 to clear the system. Any suitable delay means may be provided, for example a mechanical timer which holds switch 82 closed for that time, or an electrical latch circuitry circuity which will by-pass switch 82 for the predetermined period of time. After that time elapses, both switches will be open, and the system will be purged and stopped.
- This construction provides an air lock which is well sealed at the entry of pressurized air, and made of simple long wearing parts.
- the device has elegantly simple parts which wear well and are readily repaired and replaced.
- this apparatus is adapted for operation in such a way as to preclude freezing up in its rotor.
- the rotor never have particles in it unless it is rotating and the airstream is blowing through its ports.
- the control of rotor rotation by the rotor control, will maintain the rotor in operation until after a period of time following the stopping of the auger sufficient that all rotor ports will have passed the air entry at least one time after all particles have left the chute and have been blown from the rotor and out of the nozzle. This automatic purge of the system will prevent its freezing up.
- FIG. 7 illustrates the extension of time during which the rotor continues to turn, while only air is fed to the rotor.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
Description
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/333,087 US6346035B1 (en) | 1998-12-24 | 1998-12-24 | Generation of an airstream with subliminable solid particles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/333,087 US6346035B1 (en) | 1998-12-24 | 1998-12-24 | Generation of an airstream with subliminable solid particles |
Publications (1)
Publication Number | Publication Date |
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US6346035B1 true US6346035B1 (en) | 2002-02-12 |
Family
ID=23301210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/333,087 Expired - Lifetime US6346035B1 (en) | 1998-12-24 | 1998-12-24 | Generation of an airstream with subliminable solid particles |
Country Status (1)
Country | Link |
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US (1) | US6346035B1 (en) |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD489794S1 (en) | 2002-07-29 | 2004-05-11 | Media Blast & Abrasives, Inc. | Compressed air delivery manifold |
US20050003741A1 (en) * | 2003-07-03 | 2005-01-06 | Carroll Robert Andrew | Injecting an air stream with sublimable particles |
DE102004045770B3 (en) * | 2004-09-15 | 2005-09-08 | Alfred Kärcher Gmbh & Co. Kg | Jet drier for surfaces has gas flow generator for carrying drying granules with metering feed for supplying granules into gas flow |
WO2006083890A1 (en) | 2005-01-31 | 2006-08-10 | Cold Jet Llc | Particle blast cleaning apparatus with pressurized container |
US20080296797A1 (en) * | 2007-05-15 | 2008-12-04 | Cold Jet Llc | Particle blasting method and apparatus therefor |
US20090093196A1 (en) * | 2005-03-11 | 2009-04-09 | Dressman Richard K | Particle Blast System with Synchronized Feeder and Particle Generator |
DE202010000713U1 (en) | 2010-01-08 | 2010-05-06 | Tq-Systems Gmbh | Processing machine or device for dry ice |
US20100170965A1 (en) * | 2009-01-05 | 2010-07-08 | Cold Jet Llc | Blast Nozzle with Blast Media Fragmenter |
DE202011001264U1 (en) | 2010-01-08 | 2011-05-12 | Tq-Systems Gmbh | Processing machine for dry ice |
EP2343157A1 (en) | 2010-01-08 | 2011-07-13 | TQ-Systems GmbH | Processing machine or device for dry ice |
DE102011008139A1 (en) | 2011-01-08 | 2012-07-12 | Tq-Systems Gmbh | Processing machine for dry ice, has structure consisting of device modules, where structure has feeding module with functional space |
WO2013116710A1 (en) | 2012-02-02 | 2013-08-08 | Cold Jet Llc | Apparatus and method for high flow particle blasting without particle storage |
DE202014101465U1 (en) | 2014-03-28 | 2014-04-03 | Tq-Systems Gmbh | Dry ice blasting unit with comminution module |
WO2014182253A1 (en) * | 2013-05-06 | 2014-11-13 | Ics Ice Cleaning Systems S.R.O. | Device for mixing solid particles of dry ice with flow of gaseous medium |
WO2015109354A2 (en) | 2014-01-27 | 2015-07-30 | Feiba Engineering & Plants Gmbh | Adjusting mechanism for roller mills |
US20170072536A1 (en) * | 2015-09-16 | 2017-03-16 | Michael Seago | Injection Capable Blasting Equipment |
US9623539B2 (en) | 2014-07-07 | 2017-04-18 | Media Blast & Abrasive, Inc. | Carving cabinet having protective carving barrier |
US9931639B2 (en) | 2014-01-16 | 2018-04-03 | Cold Jet, Llc | Blast media fragmenter |
US10315862B2 (en) | 2015-03-06 | 2019-06-11 | Cold Jet, Llc | Particle feeder |
EP3626395A1 (en) | 2018-04-24 | 2020-03-25 | Cold Jet LLC | Particle blast apparatus |
WO2021035001A1 (en) | 2019-08-21 | 2021-02-25 | Cold Jet, Llc | Particle blast apparatus |
WO2021138545A1 (en) | 2019-12-31 | 2021-07-08 | Cold Jet, Llc | Method and apparatus for enhanced blast stream |
WO2022236041A1 (en) | 2021-05-07 | 2022-11-10 | Cold Jet, Llc | Method and apparatus for forming solid carbon dioxide |
US11607774B2 (en) | 2015-10-19 | 2023-03-21 | Cold Jet, Llc | Blast media comminutor |
US11633685B2 (en) | 2017-12-29 | 2023-04-25 | Media Blast & Abrasive, Inc. | Adjustable abrasive and dust separator |
WO2023158868A1 (en) | 2022-02-21 | 2023-08-24 | Cold Jet, Llc | Method and apparatus for minimizing ice build up within blast nozzle and at exit |
WO2024006405A1 (en) | 2022-07-01 | 2024-01-04 | Cold Jet, Llc | Method and apparatus with venting or extraction of transport fluid from blast stream |
Citations (5)
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US4389820A (en) * | 1980-12-29 | 1983-06-28 | Lockheed Corporation | Blasting machine utilizing sublimable particles |
US4463736A (en) * | 1982-06-07 | 1984-08-07 | Hayward Jr Wallace | Chambered rotary metering device |
US4744181A (en) * | 1986-11-17 | 1988-05-17 | Moore David E | Particle-blast cleaning apparatus and method |
US5109636A (en) * | 1988-08-01 | 1992-05-05 | Cold Jet, Inc. | Particle blast cleaning apparatus and method |
US5520572A (en) | 1994-07-01 | 1996-05-28 | Alpheus Cleaning Technologies Corp. | Apparatus for producing and blasting sublimable granules on demand |
-
1998
- 1998-12-24 US US09/333,087 patent/US6346035B1/en not_active Expired - Lifetime
Patent Citations (5)
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US4389820A (en) * | 1980-12-29 | 1983-06-28 | Lockheed Corporation | Blasting machine utilizing sublimable particles |
US4463736A (en) * | 1982-06-07 | 1984-08-07 | Hayward Jr Wallace | Chambered rotary metering device |
US4744181A (en) * | 1986-11-17 | 1988-05-17 | Moore David E | Particle-blast cleaning apparatus and method |
US5109636A (en) * | 1988-08-01 | 1992-05-05 | Cold Jet, Inc. | Particle blast cleaning apparatus and method |
US5520572A (en) | 1994-07-01 | 1996-05-28 | Alpheus Cleaning Technologies Corp. | Apparatus for producing and blasting sublimable granules on demand |
Cited By (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD489794S1 (en) | 2002-07-29 | 2004-05-11 | Media Blast & Abrasives, Inc. | Compressed air delivery manifold |
US20050003741A1 (en) * | 2003-07-03 | 2005-01-06 | Carroll Robert Andrew | Injecting an air stream with sublimable particles |
US6966819B2 (en) * | 2003-07-03 | 2005-11-22 | Robert Andrew Carroll | Injecting an air stream with sublimable particles |
DE102004045770B3 (en) * | 2004-09-15 | 2005-09-08 | Alfred Kärcher Gmbh & Co. Kg | Jet drier for surfaces has gas flow generator for carrying drying granules with metering feed for supplying granules into gas flow |
EP1637282A1 (en) * | 2004-09-15 | 2006-03-22 | Alfred Kärcher GmbH & Co. KG | Dry ice blasting device |
WO2006083890A1 (en) | 2005-01-31 | 2006-08-10 | Cold Jet Llc | Particle blast cleaning apparatus with pressurized container |
US20090093196A1 (en) * | 2005-03-11 | 2009-04-09 | Dressman Richard K | Particle Blast System with Synchronized Feeder and Particle Generator |
US20080296797A1 (en) * | 2007-05-15 | 2008-12-04 | Cold Jet Llc | Particle blasting method and apparatus therefor |
US9095956B2 (en) | 2007-05-15 | 2015-08-04 | Cold Jet Llc | Method and apparatus for forming carbon dioxide particles into a block |
US8187057B2 (en) | 2009-01-05 | 2012-05-29 | Cold Jet Llc | Blast nozzle with blast media fragmenter |
US20100170965A1 (en) * | 2009-01-05 | 2010-07-08 | Cold Jet Llc | Blast Nozzle with Blast Media Fragmenter |
DE202010000713U1 (en) | 2010-01-08 | 2010-05-06 | Tq-Systems Gmbh | Processing machine or device for dry ice |
DE102010004211A1 (en) | 2010-01-08 | 2011-07-14 | TQ-Systems GmbH, 82229 | Dry ice processing machine for cleaning dirty surface in e.g. factory building, has atomization device set with withdrawal channel connected with transportation line by extension part that is set with hose connector and/or coupling part |
WO2011082704A1 (en) | 2010-01-08 | 2011-07-14 | Tq-Systems Gmbh | Processing machine or device for dry ice |
EP2343157A1 (en) | 2010-01-08 | 2011-07-13 | TQ-Systems GmbH | Processing machine or device for dry ice |
DE202011001264U1 (en) | 2010-01-08 | 2011-05-12 | Tq-Systems Gmbh | Processing machine for dry ice |
DE102010004211B4 (en) | 2010-01-08 | 2021-10-28 | Tq-Systems Gmbh | Processing machine or device for dry ice |
DE102011008139B4 (en) | 2011-01-08 | 2022-03-10 | Tq-Systems Gmbh | Processing machine for dry ice |
DE102011008139A1 (en) | 2011-01-08 | 2012-07-12 | Tq-Systems Gmbh | Processing machine for dry ice, has structure consisting of device modules, where structure has feeding module with functional space |
US9592586B2 (en) | 2012-02-02 | 2017-03-14 | Cold Jet Llc | Apparatus and method for high flow particle blasting without particle storage |
WO2013116710A1 (en) | 2012-02-02 | 2013-08-08 | Cold Jet Llc | Apparatus and method for high flow particle blasting without particle storage |
WO2014182253A1 (en) * | 2013-05-06 | 2014-11-13 | Ics Ice Cleaning Systems S.R.O. | Device for mixing solid particles of dry ice with flow of gaseous medium |
CN105492166A (en) * | 2013-05-06 | 2016-04-13 | Ics冰雪清理系统有限公司 | Device for mixing solid particles of dry ice with flow of gaseous medium |
JP2016520006A (en) * | 2013-05-06 | 2016-07-11 | アイシーエス アイシーイー クリーニング システムズ エス.アール.オー. | Equipment for mixing dry ice solid particulates with gas media streams |
US9895788B2 (en) | 2013-05-06 | 2018-02-20 | Ics Ice Cleaning Systems S.R.O. | Device for mixing solid particles of dry ice with flow of gaseous medium |
CN105492166B (en) * | 2013-05-06 | 2018-02-23 | Ics冰雪清理系统有限公司 | For mixing the solid particle of dry ice and the device of gaseous state medium flow field |
US9931639B2 (en) | 2014-01-16 | 2018-04-03 | Cold Jet, Llc | Blast media fragmenter |
WO2015109354A2 (en) | 2014-01-27 | 2015-07-30 | Feiba Engineering & Plants Gmbh | Adjusting mechanism for roller mills |
DE202014101465U1 (en) | 2014-03-28 | 2014-04-03 | Tq-Systems Gmbh | Dry ice blasting unit with comminution module |
US9623539B2 (en) | 2014-07-07 | 2017-04-18 | Media Blast & Abrasive, Inc. | Carving cabinet having protective carving barrier |
US10737890B2 (en) * | 2015-03-06 | 2020-08-11 | Cold Jet, Llc | Particle feeder |
US10315862B2 (en) | 2015-03-06 | 2019-06-11 | Cold Jet, Llc | Particle feeder |
US20190291975A1 (en) * | 2015-03-06 | 2019-09-26 | Cold Jet, Llc | Particle feeder |
US20170072536A1 (en) * | 2015-09-16 | 2017-03-16 | Michael Seago | Injection Capable Blasting Equipment |
US11607774B2 (en) | 2015-10-19 | 2023-03-21 | Cold Jet, Llc | Blast media comminutor |
US11766760B2 (en) | 2015-10-19 | 2023-09-26 | Cold Jet, Llc | Method of comminuting particles |
US11633685B2 (en) | 2017-12-29 | 2023-04-25 | Media Blast & Abrasive, Inc. | Adjustable abrasive and dust separator |
US12097457B2 (en) | 2017-12-29 | 2024-09-24 | Media Blast & Abrasive, Inc. | Adjustable abrasive and dust separator |
US11731243B2 (en) | 2018-04-24 | 2023-08-22 | Cold Jet, Llc | Spring return actuator for rotary valves |
EP3626395A1 (en) | 2018-04-24 | 2020-03-25 | Cold Jet LLC | Particle blast apparatus |
EP4098888A1 (en) | 2018-04-24 | 2022-12-07 | Cold Jet LLC | Particle blast apparatus |
US12036637B2 (en) | 2018-04-24 | 2024-07-16 | Cold Jet, Llc | Particle blast apparatus |
WO2021035001A1 (en) | 2019-08-21 | 2021-02-25 | Cold Jet, Llc | Particle blast apparatus |
WO2021138545A1 (en) | 2019-12-31 | 2021-07-08 | Cold Jet, Llc | Method and apparatus for enhanced blast stream |
US11780051B2 (en) | 2019-12-31 | 2023-10-10 | Cold Jet, Llc | Method and apparatus for enhanced blast stream |
WO2022236041A1 (en) | 2021-05-07 | 2022-11-10 | Cold Jet, Llc | Method and apparatus for forming solid carbon dioxide |
WO2023158868A1 (en) | 2022-02-21 | 2023-08-24 | Cold Jet, Llc | Method and apparatus for minimizing ice build up within blast nozzle and at exit |
WO2024006405A1 (en) | 2022-07-01 | 2024-01-04 | Cold Jet, Llc | Method and apparatus with venting or extraction of transport fluid from blast stream |
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